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HiSpeed Switch Troubleshooting Guide
11-6
US7070447-001, Rev 01
Draft Level—Hitachi Confidential
Hitachi HiSpeed ATM Specifications
❒ UNI 3.0 & 3.1 signaling is supported.
❒ Conforms to ILMI Registration 3.1 and ILMI MIB 4.0 specifications.
❒ Due to memory constraints over the ATM uplink, 16 is the recommended
number of PTOP, Trunk, CIP, and LEC instances allowed under heavy traffic
load.
❒ One LEC per ELAN is recommended.
❒ The HiSpeed switch does not support QOS (Quality of Service) parameters.
Traffic management on the switch is UBR only.
❒ The maximum number of VCCs supported is 1024
ATM Troubleshooting Tips
❒ The ATM uplink module must be inserted into the lower PCI slot only.
❒ A multimode fiber (MMF) cable is required for use with the 155 Mbps ATM
uplink OC-3 module.
❒
Bind LANE, PTOP, and Trunking services via the port service
command.
/portserv/config/create 34
❒ Enable ILMI for LANE and signaling.
❒ Employ an external router for communication between logically separate
ELANs for CIP.
❒ Every ELAN must have one unique LES/BUS pair for LANE.
❒ To join a specific ELAN, an ELAN name must be defined.
❒ Ensure the same UNI signaling version is used between the ATM edge
devices and the ATM switch.
❒ When manually entering the ATM address of the switch, omit the AFI prefix
(Ox).
❒ Valid Trunk Indexes range from 0 through 15.
❒ A VCI value is required when configuring PVC connections. Valid VCI
values range from 32 to 1023 (0-31 are reserved by the ATM Forum).